Lemon-Espresso Tart

By • March 8, 2011 • 29 Comments

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Author Notes: The combination of lemon and espresso may sound strange, but let me assure you it is, in fact, amazing and ethereal. The bright citrus of the lemon zest lilts through the darkness of the espresso like a solo flute melody dancing through a haunting chorus of cellos. It's a flavor combination I discovered at a small coffee shop down the street from one of my old apartments where one of their specialities was espresso pulled with a strip of lemon zest packed into the grounds. I was reminded of it about a month ago when I tried a scoop of lemon espresso ice cream. The flavors enveloped in a creamy base were even more wonderful than just in an espresso. I knew immediately I needed to create something inspired by them.
I started with making a custard tart, but then decided I wanted the filling a little lighter. So I tried again making a tart with a chilled custard filling with whipped cream folded in. This then reminded me a bit of the center of one of my favorite bonbons, so I decided to line the tart crust with a layer of dark chocolate ganache. Yum. It's a labor of love, but it's worth it.
One word of caution, because the cream is infused with the coffee beans it is caffeinated. So, if you're sensitive to caffeine and are planning on serving this as a dessert, you might want to use decaf! (And as testers noted, if you want a more delicately flavored filling, you can halve the quantity of coffee beans - I'm afraid I tend to go for big bold flavors over delicate) - fiveandspice
fiveandspice

Food52 Review: Who knew lemon and espresso would be so keen on each other? Adding a bed of bittersweet chocolate certainly doesn't hurt. As fiveandspice warns, the dough is very fragile and can be challenging to work with, but it makes for an incredibly tender, tasty crust and patches well, if yours gets dismembered in transferring to the pan. If you're hoping for a delicately flavored filling, you may want to scale back the espresso beans to 1/2 cup. Kristen Miglore

Serves 8

Pate sucree

  • 6 tablespoons unsalted butter, at room temperature
  • 1/4 cup granulated sugar
  • 1 large egg yolk
  • 1 cup pastry flour
  • 1/4 teaspoon salt
  • 1 tablespoon cream
  1. Sift together the flour and salt and set aside. In the bowl of a standing mixer with a paddle attachment, beat the butter for 1 minute. Then add the sugar and beat until light and fluffy, 2 more minutes. Beat in the egg yolk, just until fully incorporated.
  2. Add in the flour mixture and beat just until everything comes together into a dough - add the cream if the mixture is too dry. Do not overbeat. Scoop the dough pieces together and press them into a ball, then flatten this into a disc about an inch thick. Wrap with plastic wrap and refrigerate for an hour.
  3. Remove the dough from the refrigerator and let stand at room temperature for 5 minutes. On a lightly floured surface, roll the dough out into a circle about 1/8th of an inch thick. This dough can be a little delicate and tricky (which can be frustrating, but the baked shell gives you great flavor and texture). Use moistened fingers to repair any cracks. Gently drape your dough over a 9 inch tart pan with removable bottom (many pastry chefs recommend using your rolling pin to help with the transfer, but I never find this to help much, so I just lift it gently with my hands all the way underneath). Press the dough into the pan and trim the rough edges off. Freeze for 30 minutes.
  4. Preheat your oven to 350F. Prick the bottom of the tart shell all over with a fork. Put your tart shell on a baking sheet and place on the center rack in your oven. This pastry crust does not need to be lined and weighted because you want it to be able to breath and get a little crisped. Bake until golden brown, about 20-25 minutes in my oven. If the bottom of the tart has puffed up at all, just gently press it back down with a spoon. Remove and allow to cool to room temperature.

Lemon-Espresso Tart filling and chocolate ganache

  • 2 1/4 cups heavy cream, divided
  • 1 cup coffee beans, espresso roast (or another dark roast)
  • the zest of 2 lemons, peeled off in strips with a vegetable peeler (but be very careful not to get any pith)
  • 1/2 cup lightly packed light brown sugar
  • 4 large egg yolks
  • 3 ounces good bittersweet chocolate, finely chopped
  1. Coarsely crush (you want them cracked into smallish pieces, but not anywhere near as small as if they were ground) the coffee beans using a mortar and pestle or a heavy pan. In a saucepan combine the crushed beans, the lemon zest, and 1 1/2 cups heavy cream. Bring just to a simmer, then remove from the heat and allow to sit for 15 minutes to infuse. Then strain the infused cream through a very fine strainer to remove any particles.
  2. While the cream is infusing, you should have time to make the ganache. In a very small saucepan, bring 1/4 cup heavy cream just to a boil. Remove from the heat and stir in the chopped chocolate. Allow to sit for 30 seconds to a minute, then using a wooden spoon or whisk, start stirring in small circles in the center of the saucepan slowly working your way out until you have a uniform melted ganache mixture (this stirring technique keeps it smooth and introduces a minimal amount of air). Pour the ganache into the cooked tart shell, spread it evenly over the bottom, and allow it to cool completely to room temperature.
  3. Go back to making the rest of the filling. In a small bowl, whisk the egg yolks for a minute until lightened and lemon colored. Over medium-low heat, combine the infused cream with the brown sugar in a saucepan, stirring until the sugar is completely melted. Bring the cream to a simmer, then take off the heat.
  4. Pour about 1/4 cup of the hot cream mixture into the egg yolks, whisking vigorously all the while to temper the yolks. Repeat. Then, scrape the egg yolk mix into the saucepan. Cook slowly over low, stirring constantly, until the custard is thick enough to coat the spoon and the spoon leaves a trail. (Patience young grasshopper. Slow is the key to smoothness.)
  5. Pour through a strainer into a bowl, put plastic wrap directly on the top and put in the refrigerator to cool for an hour.
  6. After an hour, whip the remaining 1/2 cup cream until almost stiff peaks form. Gently fold the whipped cream into the lemon-espresso custard mixture until fully incorporated. Spread this filling into the prepared tart crust. Cover the tart with plastic wrap and chill for 2 hours before serving.
  7. Phew. You have earned yourself a rather large slice, my friend!
Jump to Comments (29)

Tags: custard, delicious, ganache, whipped cream

Comments (29) Questions (0)

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over 1 year ago Stellamom

thanks - I'm going to try it again and cook it longer! It is delicious even when not well set!

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over 1 year ago Stellamom

I tried this and loved the flavor combination but the custard filling was pretty loose so slices didn't keep their shape - did i not cook it long enough? Or could I add a bit of cornstarch? What others find?

Sausage2

over 1 year ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Hi Stellamom! Glad you enjoyed the flavors. I'm guessing the problem with the custard not setting was that it didn't get cooked quite long enough. It can be tricky to know when to take it off the heat, and I know I've certainly made more than one runny custard myself by not waiting long enough!

Hilary_sp1

over 3 years ago Hilarybee

i love this. Citrus and espresso is one of my favorite combinations.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thanks! So glad you like them together too! So yummy :).

Me

over 3 years ago TheWimpyVegetarian

This sounds sooo interesting!! Really creative - I've gotta try it!! Great job!!

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thank you so much Susan! Maybe not quite as creative as your fabulous kale and kumquat creation, but I must say, I'm very happy with how it turned out! If you give it a try at any point, I would absolutely love to have your feedback.

Bike2

over 3 years ago Sagegreen

You have a great combination here! Nice recipe.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thanks Sagegreen! You're so kind. Love your pothole pie :).

My_love-1

over 3 years ago Table9

Your recipe is incredibly creative! Sounds wonderful.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thank you table9! It's so nice of you to say so. It means so much to here that type of thing from cooks I admire so much!

Stringio

over 3 years ago testkitchenette

Lovely! Spain serves lemon with hot espresso in the winter and also in summer when the rind is served with hot espresso with a cup of ice. Love the chocolate "liner" also!

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Mmm, definitely want to start having lemon rind with my iced espresso! Glad you like the chocolate liner. You can also make it a bit thicker or thinner to suit your taste.

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over 3 years ago gingerroot

This is brilliant. Love the espresso and lemon zest, but to line the tart shell with bittersweet chocolate?! Amazing!! I am making this soon.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thank you so much gingerroot! If you get a chance to make it, I would love to hear any thoughts you have.

Dscn2212

over 3 years ago boulangere

Cynthia is a trusted source on Bread/Baking.

It's a promise, fiveandspice!

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Fabulous!!!

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over 3 years ago SaltHands

This is a combination that I tend to forget about, but it is such a good one. And I can't think of a better way to bring some wintery heartiness to lemon than by adding chocolate and espresso.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

I'm so glad to hear others know this combination too. It is a great end of winter pick me up set of flavors!

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over 3 years ago drbabs

Barbara is a trusted source on General Cooking.

Lovely

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thanks drbabs!

Dscn2212

over 3 years ago boulangere

Cynthia is a trusted source on Bread/Baking.

Aren't you clever! This looks very interesting, and I'll try it this weekend. Nice job!

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thanks so much boulangere, I'm glad you think so. If you give it a try, I'd love to hear what you think!

Summer_2010_1048

over 3 years ago Midge

I'm intrigued too. What a brilliant combo!

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thank you Midge!

New_years_kitchen_hlc_only

over 3 years ago AntoniaJames

AntoniaJames is a trusted source on Bread/Baking.

Very interesting! Right up my alley, too. Love the interplay of the not-sweet notes in all three of the primary flavoring ingredients. I've had espresso with lemon zest. You're right. It's amazing. What an intriguing recipe!!! ;o)

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Thanks AJ! That's what I love about it too - the various bitter flavors weaving together, tempered by the sweet and cream.

Christine-28_small(1)

over 3 years ago cheese1227

Very nice combo. I've seen sometimes in Italy that they will serve a bit of lemon rind with espresso that you rub around the lip of the cup. I wonder if you can trace this combo back to that tradition. Of course, I can't help you to ID the region that might be done in as I can only recall it happened, not where.

Sausage2

over 3 years ago fiveandspice

Emily is a trusted source on Scandinavian Cuisine.

Aha! Leave to the Italians to come up with something so ingenious. One more reason why I really need to get to Italy someday.